Purification Instruments, Columns and Modules

Sample Loading | Prep HPLC

Conventional Prep HPLC sample loading is semi-automated using an electrically actuated six-port injection valve. The sample is loaded into the valve with a syringe and is automatically injected on to the column at the end of the equilibration step.

Software Settings

Sample is loaded into the sample loop on the six-port valve. During equilibration, the loop is outside the flow path. After the column equilibrates, the valve automatically changes position to flow through the loop, pushing the sample to the column.